And walter s



(No Model.) 2 Sheets-Sheet 1. 0. S. GARRBTSON 8u W.S.1SHIPE.

I STOVEPIPE.

7M w 8 Y n 1,3 I 19 3ft. 7T) T... m. d w MJ. n 4M. a J u.. 0W 4 6,. o 9 W. 4 w

(No Model.)

2 Sheets-Sheet 2. O. S'. GARRETSON 8v W. S. SHIPE.

STOVEPIPE.

No. 490,649. Patented Jan. 31, 1893.

Nrrn rares ATENT- OFFICE.

OLIVER S. GARRETSON, OF BUFFALO, NEW YORK, AND WALTER S. SI-IIPE, OF` MINERVA, OHIO.

STOVEPIPE.

SPECIFICATION forming part of Letters Patent No. 4$30,649, dated January 31, 1893.

Application filed February 28, 1888. Serial No. 265,607. (No model.)

To all whom it may concern.: modification of the fastening with the edges Be it known that we, OLIVER S. GARRETSON, disconnected. Fig. 16 is a similar' view showof the city of Buffalo, in the county of Erie ing the edges of the section secured together. and State of New York, and WALTER S. SHIPE, Like letters of reference refer to like parts 5 5 5 ot' Minerva, in the county ot Stark and State in the several figures.

of Ohio, have invented new and useful Iin- A represents one of the edges of the pipe provements in Stovepipes, of which the folsection which is provided on its outer side lowing is a specification. with a longitudinal flange a, terminating at This invention relates to that class of stove a short distance from the upper end of the 6o 1o pipes in which the longitudinal edges of the section, the portion of the section above the pipe sections or lengths are united by detachflange being out away to form a notch or reable fastenings, which can be readily disconcess a. v* nected, so thata large number of sections can B represents the opposite edge of the pipe be nested or placed one within the other, to sectionwhich isprovidedon itsinner side with 65 i5 facilitate their transportation and ,permit a longitudinal flange b interlocking with the compact and close storage of the same. iiange a of the opposite edge A, as clearly The object of our invention is to provide a shown in Fig. 9. simple fastening of this character which can c represents a reverse fold or lip arranged be produced at small expense. at the upper end of the section B and over- 7o 2c The invention consists of theimprovements lapping the longitudinal edge azof the recess which will be hereinafter fully described and a', as shown in Figs. 3, 6 and 8. This reverse pointed out in the claims. fold or flange is preferably formed by making In the accompanying drawings consisting a transverse cut across about one-half of the of two sheets, Figure 1 is a perspective View flange b and folding or doubling the portion 75 z5 of a section of our improved pipe, showing of the flange above this cut, inwardly upon the edges of the section disconnected. Fig. itself. The reverse fold or flangec resists the 2 is a similar view showing the position of the inward movement of the upper edges of the edges of the section preparatory to interlocksection and thereby prevents the section from ing the same. Fig. 8 is a perspective view, collapsing, while the longitudinal flanges o; b 8o 3o showing the edges of the section fastened toresist the outward movement of the edges of gether. Figs. 4, 5 and 6 are perspective lonthe section and prevent undue expansion of gitudinal sections of the pipe lengths shown the latter. The lower portion of the Iiange b Figs. 1 2 and 3 respectively, the sections beis reduced in width or made narrower than ing taken through the center ot' the pipe the main portion of the flange, as shown at e, 85 35 lengths. Fig. 7 is a fragmentary perspective and at the junction of this reduced portion view of the lower portion of a pipe section, on with the main portion of the flange, is formed an enlarged scale, showing the construction a downwardly projectingspur or hook f. The of the fastening at the lower end of the seclower portion g of the opposing flange a. adtion. Figs. 8, 9, 10 and 11 are fragmentary jacent to the reduced portion e of the flange 9o 4o tranverse sections in lines -x, lj-y, z-z, b is also reduced or made narrower than the and w-w Fig. 6, respectively, looking in the main portion of the ange, so that the latter direction indicated by the arrows. Fig. 12 is projects beyond the lower flange g and forms a perspective View ot' a pipe section provided with the upper edge of the latter an opening with a modified form of our improved fastenh through which the spuror hook f passes, as 95 45 ing, showing the edges of the pipe disconshown in Figs. 6,10 and 11. The spurf bears nected. Fig, 13 is a central longitudinal secagainst the edge of the flange g and prevents l tion of the pipe shown in Fig. 12. Fig. 14 is the lower edges of the section from moving l perspective View of said pipe section with its inwardly or collapsing, while the edges of the edges connected, a portion of the section besection are held against outward movement roo 5o ing broken away. Fig. 15 is a perspective by the interlocking narrow lianges e and g.

view of a pipe section provided with another To connect together the edges of the section, the two main flanges a b are first interloeked and the edges of the pipe are then moved upon each other longitudinally in opposite directions, as shown in Figs. 2 and 5, so as to bring the upper longitudinal edge a2 of the recess d below the reverse fold or lip c, and the spur or hook f above the opening 7L. The two edges of the section are then moved upon each other in the opposite direction,whereby the longitudinal edge d2 is caused to engage under the reverse flange c and the spurfcaused to enter the opening h, as clearly shown in Fig. 6. The spur f and opening h are preferably so arranged with reference to the reverse fold c, that the latter will be partly interlocked with the longitudinal edge a2, before the spur f enters the opening h. This arrangement renders the operation of engaging these parts more convenient, than if both fastenings were so arranged that they would have to be interlocked simultaneously. In order to disconnect the edges of the section, the saine are movedin the properdirection to disengage the parts of the fastenings.

In connectinga number of' sections to form a stove pipe, the lower end of one section is usually slipped over the upper end of the adjacent section, so that the upper ends of the sections are subjected to a strain tending to collapse the section, while the lower ends of the sections are expanded and held in an extended position by the pipe inserted into the same. It is therefore desirable to provide the upper ends of the sections with a strong fastening capable of resisting undue compression, while the fastening at the lower ends of the sections may be made somewhat lighter or of less strength. The reverse fold or flange c being the stronger fastening of the two, is preferably arranged at the upper end of' the sections.

It' desired, the fastening at the lower end of the sections may be dispensed with,as shown in Figs. l2, 13 and 14, as the lower end of the section is prevented from collapsing by the adjacent pipe, and excessive expansion is obviated by the lower portions of the interlocking flanges a Z9; but we prefer to employ a fastening at both ends.

If preferred, the fasteningconsisting of the reverse fold may be arranged at both ends of the section, as shown in Figs. l5 and 16, in which case the reverse fold or flange t' at the upper end of the section is formed on the inner side of one of the main flanges c", while the reverse fold j at the lower end of the section may he formed on the outer side of the opposite flange j. By this arrangement of the folds ij, a smooth outer surface is formed at the upper end of the section which fits closely into the adjacent section, and a smooth inner surface is formed at the lower end of the section to receive the upper smooth surface of the adjacent pipe. In this construction, the reverse fold at the lower end of the section may be made shorter than that at the upper end of the section, as it is subjected to less strain than the fold at the upper end of the section.

We claim as our invention,

l. A pipe section provided at its opposing longitudinal edges with interlocking flanges a Z9 turned in opposite directions, the flange a being cut away at one end of the section to form a notch or recess a and the flange Z) be ing provided opposite the recess d with a reverse fold or lip c turned in an opposite direction to the flange b, the flanges of the opposing edges of the section being interlocked by a lengthwise movementof the flanges upon each other, substantially as setforth.

2. The combination with the interlocking longitudinal flanges d b, of the pipe section, of a spur or hookf formedon one of the edges of said section, and a reduced flange g formed on the opposite edge of the section, substantially as set forth.

3. The combination with the interlocking longitudinal flanges d b of the section, of a reverse fold or flange c and recess a formed on said flanges at one end of the pipe section, and a spur or hook f and reduced flange g formed on said flanges at the opposite end of the section, substantially as set forth.

Witness our hands this 14th day of January, 1888.

OLIVER S. GARRETSON. WALTER S. SHIPE.

lVitnesses:

CHESTER D. Howe, JNO. J. BONNER. 

